Anaheim Convention Center
Booth # X18
Lithium-ion batteries may overheat due to overcharging and, in the worst case, catch fire. To investigate their safety, the battery materials must be evaluated for thermal stability. Differential scanning calorimetry (DSC) is effective for these measurements. As battery materials readily react with moisture and oxygen, DSC measurements are performed on materials after they have been sealed in a stainless-steel pressure-resistant cell inside the glove box.
This page introduces a system that uses accessories such as an extremely compact hydraulic press that can be easily operated in the glove box and presents some measurements made using the system.
Uncharged cathode active material and electrolyte solution were measured sealed inside a stainless-steel pressure-resistant cell. A small exothermic change is observed near 300°C.
Cathode active material from a charged battery and electrolyte solution were measured using a similar method. Charging makes the active material unstable, resulting in a large exothermic peak near 200°C due to decomposition.
The electrolyte solution was measured. A sharp exothermic peak can be observed near 300°C, probably due to decomposition.
The TA-60WS (PC set) system can be connected to up to four thermal analyzers, such as DSC, TG-DTA, or TMA. It offers smooth, easy operation from measurements to data analysis and report generation. (It supports multi-channels and multi-tasking.) OLE and ASCII conversion functions offer links to commercial software. (Windows XP/Vista/7 compatible.)
For details about prices and delivery deadlines, contact your Shimadzu representative.